613206623 has 4 divisors (see below), whose sum is σ = 621843408. Its totient is φ = 604569840.

The previous prime is 613206613. The next prime is 613206637. The reversal of 613206623 is 326602316.

613206623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 613206623 - 2⁸ = 613206367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613206613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4318286 + ... + 4318427.

It is an arithmetic number, because the mean of its divisors is an integer number (155460852).

Almost surely, 2^613206623 is an apocalyptic number.

613206623 is a deficient number, since it is larger than the sum of its proper divisors (8636785).

613206623 is an equidigital number, since it uses as much as digits as its factorization.

613206623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8636784.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 613206623 is about 24763.0091669005. The cubic root of 613206623 is about 849.5760852742.

Adding to 613206623 its reverse (326602316), we get a palindrome (939808939).

The spelling of 613206623 in words is "six hundred thirteen million, two hundred six thousand, six hundred twenty-three".